|Michael Turvey Theory of Perception-Action for All Organisms - V. Murzin|
Michael T. Turvey Theory of Perception-Action for All Organisms: What kind of Science Does it Entail? Lecture given at Florida Atlantic University on May 5th, 2011. Hosted by: Center for Complex Systems and Brain Sciences, FAU
Keywords: psychology; brain science; complex systems
|Think Complexity - Allen B. Downey|
This book is about complexity science, data structures and algorithms, intermediate programming in Python, and the philosophy of science:Data structures and algorithms: A data structure is a collection that contains data elements organized in a way that supports particular operations. For example, a dictionary organizes key-value pairs in a way that provides fast mapping from keys to values, but mapping from values to keys is generally slower.An algorithm is a mechanical process for performing a...
Keywords: Computer Science; Programming; Complex Systems
|Michael Posner Developing The Human Brain - V. Murzin|
Michael I. Posner Developing The Human Brain: Attention Networks and Self Regulation Lecture given at Florida Atlantic University on December 8, 2011. Hosted by: Center for Complex Systems and Brain Sciences, Charles E. Schmidt College of Science, FAU
Keywords: psychology; brain science; complex systems
|Mineral Mapping with AVIRIS and EO-1 Hyperion - Kruse, Fred A|
Imaging Spectrometry data or Hyperspectral Imagery (HSI) acquired using airborne systems have been used in the geologic community since the early 1980 s and represent a mature technology (Goetz et al., 1985; Kruse et al., 1999). The solar spectral range, 0.4 to 2.5 m, provides abundant information about many important Earth-surface minerals (Clark et al., 1990). In particular, the 2.0 to 2.5 m (SWIR) spectral range covers spectral features of hydroxyl-bearing minerals, sulfates, and carbonates c...
Keywords: COMPLEX SYSTEMS; QUANTUM ELECTRONICS; UNIVERSE; EXPLORATION
|Machine_Human_Organizational_Systems_and_Web_Services_ - Gerard Arthus|
Human-Machine Organizational Systems and Web Services. Published 13 August 2002 by Gerard Arthus; released as Public Domain. Dimensions 8 1/2" width by 11" Height. Etext created by Gerard Arthus.
Keywords: information technologies; evolution; economics; complex systems; gerard arthus; garthus; 2002
|Historical_Evolution_In_Conceptions_Of_Reality - Gerard Arthus|
Historical Evolution in Conceptions of Reality. This is an abstract of a conference paper Published during 1992; released as Public Domain. Dimensions 8 1/2" width by 11" Height. Etext
Keywords: history; information technologies; evolution; economics; complex systems; gerard arthus; garthus
|CCK08 uStream session chat, October 17, 2008 - Dave Cormier, Stephen Downes, George Siemens, Jennifer Jones, CCK08 participants|
This is the recording of the 6th uStream Friday session of the course "Connectivism and Connective Knowledge", commonly abbreviated as CCK08 (http://ltc.umanitoba.ca/connectivism). Speakers are Dave Cormier (moderator), Stephen Downes, George Siemens, and Jennifer Jones (injenuity)
Keywords: cck08; connectivism; theory; discussion; chat; chaos theory; complex systems
|Historical_Evolution_In_Conceptions_Of_Reality_Notes_ - Gerard Arthus|
Historical Evolution in Conceptions of Reality; Notes. This is an abstract of a conference paper Published during 1992; released as Public Domain. Dimensions 8 1/2" width by 11" Height and weight 21grams, 5 pages. Etext created by Gerard Arthus.
Keywords: history; information technologies; evolution; economics; complex systems; gerard arthus; garthus
|Supernova remnants and the carbon abundance in M33 - Blair, W. P.|
The IUE and optical spectral data on a supernova remnant in M33 was combined in order to determine the abundance of carbon in the interstellar gas of M33. New shock model calculations were used to guide the interpretation and a substantially lower value of the ratio c/o than was assumed previously for M33 may be necessary to explain the data. However, some inconsistencies in the observed and predicted line intensities indicate that the spectra may be partly contaminated by H II region emission o...
Keywords: COMPLEX SYSTEMS; OPTIMIZATION; SYSTEMS ENGINEERING; SENSITIVITY; SYSTEMS ANALYSIS
|High-Q X-Band and K-Band Micromachined Spiral Inductors for Use in Si-Based ICs - Lu, Liang-Hung|
A micromachined structure with reduced parasitics is proposed to enhance the resonant frequency and the quality factor (Q) of a spiral inductor. Inductors with various etch depths have been fabricated on a high resistivity Si substrate. Two-port S-parameters measurement is taken to characterize the performance of the inductors. With an etch depth of 20 micron, a fabricated 1.8 nH spiral inductor achieves a maximum resonant frequency of 25.6 GHz and a maximum Q of 20.2 at 14.5 GHz...
Keywords: COMPLEX SYSTEMS; PARAMETER IDENTIFICATION; MATHEMATICAL MODELS; SYSTEM IDENTIFICATION; SCATTERING; IMPEDANCE
|The_Emergence_of_Machine/Human_Organizations - Gerard Arthus|
The Emergence of Machine/Human Organizations in the Context of Recent Advances in Information Technologies: A Descriptive Historical Perspective. Published during 2006 for a course I was taking at St. John's University, Jamaica, New York; released as Public Domain. Dimensions 8 1/2" width by 11" Height. E text created by Gerard Arthus.
Keywords: information technologies; evolution; economics; complex systems; gerard arthus; garthus
Downloads: 210 (1 review)
|Virtual Small Group Dynamics: A Quantitative Experimental Framework - Andrea Guazzini, Alessandro Cini, Rosapia Lauro-Grotto, Franco Bagnoli|
We present a research framework consisting of a standard chat environment and a set of analytical tools, able to detect some relevant characteristics of the group dynamics of interacting people. The analysis is independent of the semantic content of the exchanged messages, and the standardized interface avoids hard-to-detect non-verbal communications, still providing the expression of emotional contents...
Keywords: Virtual Dynamics; Small Group; Social Psychology; Complex Systems
|Fundamental Study of Material Flow in Friction Stir Welds - Reynolds, Anthony P|
The presented research project consists of two major parts. First, the material flow in solid-state, friction stir, butt-welds as been investigated using a marker insert technique. Changes in material flow due to welding parameter as well as tool geometry variations have been examined for different materials. The method provides a semi-quantitative, three-dimensional view of the material transport in the welded zone...
Keywords: PLANNING; TASKS; MANAGEMENT; COMPLEX SYSTEMS; TIME DEPENDENCE; TASK COMPLEXITY; GOALS
|International_Relations_And_The_Evolution_Of_Cooperation_Between_Nations_In_The_Abscence_Of_Centralized_Authority_ - Gerard Arthus|
International Relations and The Evolution Of Cooperation Between Nations in The Absence of Centralized Authority. Submitted as a Final Paper for Pol 762; Long Island University, Greenvale, New York. Published 28 November 1987; by Gerard Arthus. Released as Public Domain. Dimensions 8 1/2" width by 11" Height. Etext created by Gerard Arthus.
Keywords: information technologies; evolution; economics; complex systems; gerard arthus; garthus; 1987
|Interactomics and Complex Systems Biology - I.C. Baianu, editor with several contributors|
A concise overview in a 137-page contributed textbook on Interactomics, Genomics, Proteomics, protein-protein interactions, metabolic pathways, metabolic networks and Complex Systems Biology. DNA,Proteomics,Metabolic Networks,Interactomics and Complex Systems Biology
Keywords: DNA; proteomics; metabolic networks; Interactomics; Complex Systems Biology; CSB
|Biodynamics and Complexity Theories - I. C. Baianu, editor, with several listed contributors|
A 223-page introduction to Biodynamics and Complexity Theories.
Keywords: biological dynamics/Biodynamics; complex systems biology (CSB) theories
|Mathematical and Experimental Biophysics - I C. Baianu, editor, with several contributors|
An introduction and fundamentals of Mathematical/theoretical and Experimental Biophysics
Keywords: complex systems biology; mathematical modelling; cell biophysics; population biology models
|Theory_And_Analysis_For_Networked_Social_Systems_ - Garry Robins|
'Theory and Analysis for Networked Social Systems' by Garry Robins, Psychological Sciences, University of Melbourne, Australia, used for the ISE100 course "Computer Competency'; Term 133 at National College, South Bend, Indiana. Released into the Public Domain by Gerard Arthus under a Creative Commons License. Keynote speaker Garry Robins discusses networked social systems at the 4th Annual Political Networks Conference and Workshops...
Keywords: garthus; garthus1; knowledge; internet; national college; information technology; complex systems
|Understanding Large-Scale Cortical Coordination - Dr. Steve Bressler - Brain coordination Dynamics|
Mechanisms efficiently governing parametric changes in the degree of coordination.
Keywords: Brain Coordination Dynamics; Dr. Steve Bressler; Center for Complex Systems and Brain Sciences; Florida Atlantic University
|The Insoluble Carbonaceous Material of CM Chondrites as Possible Source of Discrete Organics During the Asteroidal Aqueous Phase - Yabuta, H.|
The larger portion of the organic carbon in carbonaceous chondrites (CC) is present as a complex and heterogeneous macromolecular material that is insoluble in acids and most solvents (IOM). So far, it has been analyzed only as a whole by microscopy (TEM) and spectroscopy (IR, NMR, EPR), which have offered and overview of its chemical nature, bonding, and functional group composition. Chemical or pyrolytic decomposition has also been used in combination with GC-MS to identify individual compound...
Keywords: COMPLEX SYSTEMS; COMPUTER NETWORKS; SOFTWARE ENGINEERING; SYSTEMS ENGINEERING; SWARMING; TEAMS; ROBOTS; AUTONOMY; PROGRAM VERIFICATION (COMPUTERS)
|Numerical Modeling of Drying Residual RP-1 in Rocket Engines - Majumdar, Alok|
When a Rocket Engine shuts down under a fuel rich environment, a significant amount of unburned RP-1 is trapped In the engine. It is necessary to clean the residual RP-1 prior to subsequent firing to avoid any explosion due to detonation. The conventional method is to dry RP-1 with inert gas such as Nitrogen or Helium. It is difficult to estimate the drying time unless the engine is adequately equipped with instruments to measure the trace of RP-1 during the drying process...
Keywords: COMPLEX SYSTEMS; REINFORCEMENT (PSYCHOLOGY); MOTIVATION; SELF STIMULATION; LEARNING; SIMULATION; TRAINING SIMULATORS; HUMAN CENTRIFUGES
|Designing_Complex_Systems_For_The_21st_Century_ - Wei Chen|
'Designing Complex Systems For The 21st Century' by the Wei Chen at the 18th International Conference on Engineering Design, 15-18 August 2011; the Technical Unversity of Denmark, used for the ISE100 course "Computer Competency'; Term 133 at National College, South Bend, Indiana. Released into the Public Domain by Gerard Arthus under a Creative Commons License.
Keywords: garthus; garthus1; knowledge; internet; national college; information technology; complex systems
|An_Overview_Of_Social_Conflicts_And_Movements - Gerard Arthus|
An Overview of Social Conflicts and Movements; 18 December, 1989; by Gerard Arthus released under the Creative Commons License as Public Domain. Dimensions 8 1/2" width by 11" Height. Etext created by Gerard Arthus.
Keywords: gerard arthus; garthus; complex systems; nonlinear; sociology; collective mobilization; political science; social conflicts; movements
|Subsurface Weathering of Rocks and Soils at Gusev Crater - Yen, A. S.|
Data collected by the Mars Exploration Rover (MER) Spirit at Gusev Crater suggest that enhanced weathering of rocks and soils occurs beneath the immediate surface. We suggest that this alteration occurs over geological timescales under present climatic conditions and is a result of diurnal condensation of thin-films of water on subsurface materials. Additional information is included in the original extended abstract.
Keywords: AUTONOMY; COMPLEX SYSTEMS; COMPUTER PROGRAMMING; SOFTWARE DEVELOPMENT TOOLS; AUTONOMIC NERVOUS SYSTEM; SOFTWARE ENGINEERING
|Axisymmetric Two-Dimensional Computation of Magnetic Field Dragging in Accretion Disks - Reyes-Ruiz, Mauricio|
In this paper we model a geometrically thin accretion disk interacting with an externally imposed, uniform, vertical magnetic field. The accretion flow in the disk drags and distorts field lines, amplifying the magnetic field in the process. Inside the disk the radial component of the field is sheared into a toroidal component. The aim of this work is to establish the character of the resultant magnetic field and its dependence on the disk's parameters...
Keywords: FAILURE; EXPERIMENTATION; DATA PROCESSING; INJECTION; EVALUATION; COMPLEX SYSTEMS; ARCHITECTURE (COMPUTERS); CRASHES; DESTRUCTION; ERRORS; PROTOTYPES
|Ozone and Water Vapor Measurements by Raman Lidar in the Planetary Boundary Layer: Error Sources and Field Measurements - Lazzarotto, Benoit|
Why do we need time series of ozone and water vapor profiles at low altitude The degradation of air quality is a very serious environmental problem that affects urban and industrial areas worldwide. Air pollution injures human health and ecosystems, diminishes crop yield, and spoils patrimony and materials. The phenomena involved in air pollution are very complex. Once emitted into the atmosphere, (primary) pollutants are transported, dispersed, transformed by gas/solid phase change and chemical...
Keywords: FAULT TREES; TOPOLOGY; ANALYSIS (MATHEMATICS); COMPLEX SYSTEMS; VACUUM SYSTEMS; HYDRAULIC EQUIPMENT; SYSTEMS ANALYSIS
|A Novel Four-Node Quadrilateral Smoothing Element for Stress Enhancement and Error Estimation - Tessler, A.|
A four-node, quadrilateral smoothing element is developed based upon a penalized-discrete-least-squares variational formulation. The smoothing methodology recovers C1-continuous stresses, thus enabling effective a posteriori error estimation and automatic adaptive mesh refinement. The element formulation is originated with a five-node macro-element configuration consisting of four triangular anisoparametric smoothing elements in a cross-diagonal pattern...
Keywords: DESIGN ANALYSIS; FLUID DYNAMICS; MULTIDISCIPLINARY RESEARCH; MULTIDISCIPLINARY DESIGN OPTIMIZATION; SYSTEMS ENGINEERING; COMPLEX SYSTEMS; AERODYNAMIC CONFIGURATIONS
|Neural flows in space-time: Traces of the self-organizing brain. - Dr. Emmanuelle Tognoli - Brain Coordination Dynamics 2010|
New techniques for the study of brain coordination dynamics.
Keywords: Brain Coordination Dynamics; Dr. Emmanuelle Tognoli; Center for Complex Systems and Brain Sciences; Florida Atlantic University
|The consortium of the Center for Complex Systems - Brandeis University|
Keywords: Brandeis University. Center for Complex Systems; Cooperative industrial research; Education, Higher
|The Palladium Isotopic Composition in Iron Meteorites - Chen, J. H.|
Ru, Mo and Pd are very useful indicators for the identification of nucleosynthetic components. We have developed techniques for Pd isotopes, in an effort to check the extent of isotopic effects in this mass region and for a Pt-group element which is less refractory than Ru. Stable Pd isotopes are produced by the process only (102Pd), the s-process only (104Pd), the process only (Pd-110) and by both the r- and s-processes (Pd-105, Pd-106, Pd-108)...
Keywords: ENVIRONMENTAL MONITORING; BAYES THEOREM; FORMALISM; DYNAMICAL SYSTEMS; SYSTEMS SIMULATION; COMPLEX SYSTEMS; OXYGEN PRODUCTION; LOGIC PROGRAMMING
|Nonlinear_Dynamic_Feedback_Mechanisms_Underlying_Collective_Mobilizations - Gerard Arthus|
Nonlinear Dynamic Feedback Mechanisms Underlying Collective Mobilization and Other Sociological Processes; 10 October, 1989; by Gerard Arthus released under the Creative Commons License as Public Domain. Dimensions 8 1/2" width by 11" Height. Etext created by Gerard Arthus.
Keywords: gerard arthus; garthus; complex systems; nonlinear; sociology; collective mobilization; political science
|Unified Theory for Aircraft Handling Qualities and Adverse Aircraft-Pilot Coupling - Hess, R. A|
A unified theory for aircraft handling qualities and adverse aircraft-pilot coupling or pilot-induced oscillations is introduced. The theory is based on a structural model of the human pilot. A methodology is presented for the prediction of (1) handling qualities levels; (2) pilot-induced oscillation rating levels; and (3) a frequency range in which pilot-induced oscillations are likely to occur. Although the dynamics of the force-feel system of the cockpit inceptor is included, the methodology ...
Keywords: ACTIVE CONTROL; MATHEMATICAL MODELS; COMPLEX SYSTEMS; NONLINEAR SYSTEMS; CONTROL SYSTEMS DESIGN; AEROSPACE INDUSTRY; SYSTEMS SIMULATION
|Unsteady Flowfield Around Tandem Cylinders as Prototype for Component Interaction in Airframe Noise - Khorrami, Meldi R.|
Synergistic application of experiments and numerical simulations is crucial to understanding the underlying physics of airframe noise sources. The current effort is aimed at characterizing the details of the flow interaction between two cylinders in a tandem configuration. This setup is viewed to be representative of several component-level flow interactions that occur when air flows over the main landing gear of large civil transports...
Keywords: COMPLEX SYSTEMS; SPECIFICATIONS; MANUALS; PARALLEL PROGRAMMING; DISTRIBUTED PARAMETER SYSTEMS; CLAIMING; RESOLUTION
|Aeronautical Engineering: A Continuing Bibliography with Indexes - NON|
This supplemental issue of Aeronautical Engineering, A Continuing Bibliography with Indexes (NASA/SP-1999-7037) lists reports, articles, and other documents recently announced in the NASA STI Database. The coverage includes documents on the engineering and theoretical aspects of design, construction, evaluation, testing, operation, and performance of aircraft (including aircraft engines) and associated components, equipment, and systems...
Keywords: COMPLEX SYSTEMS; SPACE EXPLORATION; SYSTEMS ANALYSIS; CONSTRUCTION; SYNCHRONISM; ALGORITHMS; COMPUTER PROGRAMS; DATA STRUCTURES; PETRI NETS; ITERATION
|Two-dimensional model of a Space Station Freedom thermal energy storage canister - Kerslake, Thomas W.|
The Solar Dynamic Power Module being developed for Space Station Freedom uses a eutectic mixture of LiF-CaF2 phase change salt contained in toroidal canisters for thermal energy storage. Results are presented from heat transfer analyses of the phase change salt containment canister. A 2-D, axisymmetric finite difference computer program which models the canister walls, salt, void, and heat engine working fluid coolant was developed...
Keywords: ADAPTIVE CONTROL; SIMULATION; COMPLEX SYSTEMS; CONTROL SYSTEMS DESIGN; MANIPULATORS; TRACKING (POSITION); TRAJECTORIES; ALGORITHMS; MASS RATIOS; PAYLOADS
|Visual study of the effect of grazing flow on the oscillatory flow in a resonator orifice - Baumeister, K. J.|
Grazing flow and oscillatory flow in an orifice were studied in a plexiglass flow channel with a single side branch Helmholtz resonator using water as the fluid medium. An oscillatory flow was applied to the resonatory cavity, and color dyes were injected in both the orifice and the grazing flow field to record the motion of the fluid. The flow regimes associated with linear and nonlinear (high sound pressure level) impedances with and without grazing flows were recorded by a high-speed motion-p...
Keywords: COMPLEX SYSTEMS; DYNAMIC STABILITY; RELIABILITY ANALYSIS; DIFFERENTIAL EQUATIONS; HIERARCHIES; LIAPUNOV FUNCTIONS; PERTURBATION THEORY
|Rotor Design Options for Improving XV-15 Whirl-Flutter Stability Margins - Acree, C. W., Jr.|
Rotor design changes intended to improve tiltrotor whirl-flutter stability margins were analyzed. A baseline analytical model of the XV-15 was established, and then a thinner, composite wing was designed to be representative of a high-speed tiltrotor. The rotor blade design was modified to increase the stability speed margin for the thin-wing design. Small rearward offsets of the aerodynamic-center locus with respect to the blade elastic axis created large increases in the stability boundary...
Keywords: NANOSATELLITES; GROUND OPERATIONAL SUPPORT SYSTEM; AUTONOMY; COMPLEX SYSTEMS; LUMINAIRES; PROTOTYPES; SPACE FLIGHT
|Discovery of an Afterglow Extension of the Prompt Phase of Two Gamma Ray Bursts Observed by Swift - Bathelmy, S. D.|
Contemporaneous BAT and XRT observations of two recent well-covered GRBs observed by Swift, GRB 050315 and GRB 050319, show clearly a prompt component joining the onset of the afterglow emission. The rapid slewing capability of the spacecraft enables X-ray observations immediately after the burst, typically 100 s following the initiation of the prompt y-ray phase. By fitting a power law form to the y-ray spectrum, we extrapolate the time dependent fluxes measured by the BAT, in the energy band 1...
Keywords: COMPLEX SYSTEMS; PROGRAM VERIFICATION (COMPUTERS); SYNCHRONISM; PROVING; COMPUTERS; SPECIFICATIONS; COST EFFECTIVENESS; FAILURE
|Complexity_And_The_Social_Sciences_ - Gerard Arthus|
Complexity and The Social Sciences; July 1991; by Gerard Arthus released under the Creative Commons License as Public Domain. Dimensions 8 1/2" width by 11" Height. Etext created by Gerard Arthus.
Keywords: gerard arthus; garthus; complex systems; nonlinear; sociology; collective mobilization; political science; 1991
|Complexity, Emergent Systems, Life and Complex Biological Systems: Complex Systems Theory and Biodynamics - I. C. Baianu, Editor, et al.|
A book on Complex System dynamics, the study of the behaviour of complex systems, Dynamical system in mathematics Dynamic programming in computer science and control theory, Complex systems biology, Neurodynamics and Psychodynamics.
Keywords: An overview is presented of System dynamics; the study of the behaviour of complex systems; Dynamical system in mathematics; Dynamic programming in computer science and control theory; Complex systems biology; Neurodynamics and Psychodynamics
|Research in Observations of Oceanic Air/Sea Interaction - Long, David G.|
The primary purpose of this research has been: (1) to develop an innovative research radar scatterometer system capable of directly measuring both the radar backscatter and the small-scale and large-scale ocean wave field simultaneously and (2) deploy this instrument to collect data to support studies of air/sea interaction. The instrument has been successfully completed and deployed. The system deployment lasted for six months during 1995...
Keywords: COMPLEX SYSTEMS; LANDING AIDS; LASER RANGE FINDERS; POSITION (LOCATION); GLOBAL POSITIONING SYSTEM; ENVIRONMENT MODELS; ACTUATORS; AUTONOMY; NAVIGATION
|SCANZ 2011 - Peter Gluckman - 21Feb11 - Science Media Centre (NZ)|
Science Communicators' Association of New Zealand 2011 conference in Auckland. Second Keynote speaker Day 1: Professor Sir Peter Gluckman - Prime Minister's Chief Science Advisor
Keywords: SCANZ; Peter Gluckman; chief science advisor; media; science communication; post-normal science; complex systems; risk communication; evidence-based policy
|NASA/University Technology Cooperation - NON|
NASA is extensively engaged in cooperative technology development efforts with the nation's research universities. An example of NASA/university cooperation is the work of the Space Technology Center at the University of Kansas (KU) and the KU Center for Research, Inc. (CRINC). Directed by Professor Bill G. Barr, the Space Technology Center is one of 27 interdisciplinary centers established as part of a NASA plan to set up a network of advanced facilities across the nation...
Keywords: AEROACOUSTICS; COMPLEX SYSTEMS; FEEDBACK; NUMERICAL ANALYSIS; SCREECH TONES; NOISE (SOUND); SOUND WAVES; SONIC NOZZLES; SOUND PRESSURE; NEAR FIELDS
|PolyA Single Strand DNA Translocation Through an Alpha-Hemolysin Pore Stem - OKeeffe, James|
A new model for the polymer-pore interaction energy is introduced, based on an atomic-scale description of coulombic polymer-pore interaction. The enhanced drift velocity, experimentally observed for short polymers, is successfully accounted for, using this interaction energy model. For R/R(sub 0)>4 (R(sub 0)=7 angstroms) the translocation velocity approaches the free space drift velocity v(sub 0)...
Keywords: JAVA (PROGRAMMING LANGUAGE); SPACE EXPLORATION; COMPUTER PROGRAMS; SOFTWARE ENGINEERING; MARS ROVING VEHICLES; SYSTEMATIC ERRORS; COMPLEX SYSTEMS; APPLICATIONS PROGRAMS (COMPUTERS)
|Modeling Modern Methane Emissions From Natural Wetlands - Walter, Bernadette P.|
Methane is an important greenhouse gas which contributes about 22% to the present greenhouse effect. Natural wetlands currently constitute the biggest methane source and were the major one in pre-industrial times. Wetland emissions depend highly on the climate, i.e., on soil temperature and water table. In order to investigate the response of methane emissions from natural wetlands to climate variations, a process-based model that derives methane emissions from natural wetlands as a function of ...
Keywords: AIRCRAFT RELIABILITY; GENERAL AVIATION AIRCRAFT; AIRCRAFT SAFETY; COMPLEX SYSTEMS; RANDOM SAMPLING; GOODNESS OF FIT; BIAS; DATA PROCESSING
|Radiographic Moire - NON|
A method for the x-ray inspection of materials making use of the Moire effect is described. The Moire effect results when two patterns are superimposed; a third pattern is produced. Any change in either of the first two patterns creates a change in the third. Moire inspection is common with visible light. This invention allows the technique to be extended to locations inaccessible to visual inspection...
Keywords: COMPLEX SYSTEMS; COMPUTER PROGRAMS; PROGRAMMING ENVIRONMENTS; REAL TIME OPERATION; SOFTWARE DEVELOPMENT TOOLS; COMPUTER GRAPHICS; DATA MANAGEMENT; INFORMATION FLOW
|Q-derivatives, coherent states and squeezing - Celeghini, E.|
We show that the q-deformation of the Weyl-Heisenberg (q-WH) algebra naturally arises in discretized systems, coherent states, squeezed states and systems with periodic potential on the lattice. We incorporate the q-WH algebra into the theory of (entire) analytical functions, with applications to theta and Bloch functions.
Keywords: ANALYSIS (MATHEMATICS); ECONOMICS; NONLINEARITY; SPACE COLONIES; CHAOS; COMPLEX SYSTEMS; DYNAMIC MODELS; DYNAMICAL SYSTEMS; MATHEMATICAL MODELS; NONLINEAR SYSTEMS; SHAPES; SOCIOLOGY
|The Shergottite Age Paradox and the Relative Probabilities of Ejecting Martian Meteorites of Differing Ages - Borg, L. E.|
The apparent paradox that the majority of impacts yielding Martian meteorites appear to have taken place on only a few percent of the Martian surface can be resolved if all the shergottites were ejected in a single event rather than in multiple events as expected from variations in their cosmic ray exposure and crystallization ages. If the shergottite-ejection event is assigned to one of three craters in the vicinity of Olympus Mons that were previously identified as candidate source craters for...
Keywords: COMPUTERIZED SIMULATION; BOUNDARY CONDITIONS; ALGORITHMS; CRYSTAL GROWTH; EVALUATION; EXPERIMENT DESIGN; COMPLEX SYSTEMS; SENSITIVITY; RADIATIVE HEAT TRANSFER; ERRORS; COST REDUCTION
|Oxygen and Fuel Jet Diffusion Flame Studies in Microgravity Motivated by Spacecraft Oxygen Storage Fire Safety - Sunderland, P. B.|
Owing to the absence of past work involving flames similar to the Mir fire namely oxygen-enhanced, inverse gas-jet diffusion flames in microgravity the objectives of this work are as follows: 1. Observe the effects of enhanced oxygen conditions on laminar jet diffusion flames with ethane fuel. 2. Consider both earth gravity and microgravity. 3. Examine both normal and inverse flames. 4. Compare the measured flame lengths and widths with calibrated predictions of several flame shape models...
Keywords: RELIABILITY ANALYSIS; QUANTITATIVE ANALYSIS; GENETIC ALGORITHMS; COMPLEX SYSTEMS; PRODUCTIVITY; MODELS; LIFE (DURABILITY); INTERFEROMETERS; COST EFFECTIVENESS; SIMULATED ANNEALING; SENSITIVITY ANALYSIS; REDUNDANCY
|Astronaut Exposures to Ionizing Radiation in a Lightly-Shielded Spacesuit - Wilson, J. W.|
The normal working and living areas of the astronauts are designed to provide an acceptable level of protection against the hazards of ionizing radiation of the space environment. Still there are occasions when they must don a spacesuit designed mainly for environmental control and mobility and leave the confines of their better-protected domain. This is especially true for deep space exploration. The impact of spacesuit construction on the exposure of critical astronaut organs will be examined ...
Keywords: MARS EXPLORATION; TELEROBOTICS; NASA SPACE PROGRAMS; MARS ROVING VEHICLES; MISSION PLANNING; TERRAIN; SENSITIVITY; HUMAN BEHAVIOR; COMPLEX SYSTEMS